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US 7,480,464 B2Granted
Widely tunable, dispersion tolerant transmitter
AssigneeFinisar Corporation
InventorsKevin McCallion, Yasuhiro Matsui, Jianying Zhou, Michael Deutsch, Parviz Tayebati, Daniel Mahgerefteh
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Abstract
An optical transmitter comprising: (i) an electrical switch; (ii) a laser array comprising a plurality of tunable laser elements; and (iii) an Optical Spectrum Reshaper (OSR) used to reshape the output pulses from the laser elements in the laser array; wherein the electrical switch takes an input electrical digital signal and selectively directs it to a specific laser element in the DFB laser array.
Claims6
An optical transmitter comprising:
- (i) an electrical switch;
- (ii) a laser array comprising a plurality of tunable laser elements;
- and
- (iii) an Optical Spectrum Reshaper (OSR) used to reshape the output pulses from the laser elements in the laser array;
- wherein the electrical switch takes an input electrical digital signal and selectively directs it to a specific laser element in the laser array.
2 more elements
A widely tunable, dispersion tolerant transmitter comprising:
- (i) an electrical switch element having an input and n outputs;
- (ii) a tunable laser unit comprising an array of n laser elements;
- (iii) a micro-electro-mechanical mirror;
- and
- (iv) a periodic optical spectrum reshaper;
- wherein the electrical switch selectively directs an input electrical data signal to directly modulate one of the n elements of the laser array so as to produce a frequency modulated signal, and wherein the micro-electro-mechanical mirror selectively directs the output of the modulated laser element to the optical spectrum reshaper so as to generate a amplitude modulated signal.
3 more elements
Dependencies are inferred from the claim text.